Measurements Statistics and significant figures Biology essay
For example, even if the rules for significant figures have been followed, it is foolish to assume, as is often done, that the uncertainty in the result is only one unit in the last digit. To avoid bothering with significant figures, I prefer to attach a statistical confidence interval to the reported result, for example 'there is a chance.' The basic types of statistical tests used in biology fall into four basic categories: correlation, comparison of means, regression, and nonparametric. Correlational tests measure how closely two or more variables are related to each other. Comparisons of means measure the difference between the means of two or more sets of variables,